WordNet

the state of being enlarged
a photographic print that has been enlarged (同)blowup, magnification
of or relating to or near the small of the back and the back part of the pelvis between the hips

PrepTutorEJDIC

〈U〉〈C〉拡大,増大,拡張;増補;増築 / 〈C〉拡大(増大,拡張)された部分 / 〈C〉(写真)の引き伸ばし;引き伸ばした写真

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/01/30 03:23:06」(JST)

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The lumbar enlargement (or lumbosacral enlargement) is a widened area of the spinal cord that gives attachment to the nerves which supply the lower limbs.

It commences about the level of L1 and ends at S2, and reaches its maximum circumference, of about 33 mm. Inferior to the lumbar enlargement is the conus medullaris.^[1]

An analogous region for the upper limbs exists at the cervical enlargement.

Additional images

Spinal cord. Spinal membranes and nerve roots.Deep dissection. Posterior view.

References

^ http://neuroscience.uth.tmc.edu/s2/chapter03.html

External links

lesson6spinalcord&coverings at The Anatomy Lesson by Wesley Norman (Georgetown University)
Anatomy photo:02:08-0102 at the SUNY Downstate Medical Center - "Vertebral Canal and Spinal Cord: Regions of the Spinal Cord"
Atlas image: n3a5p3 at the University of Michigan Health System - "Spinal Cord, Fetus, Posterior View"

This article incorporates text from a public domain edition of Gray's Anatomy.

This neuroscience article is a stub. You can help Wikipedia by expanding it.

UpToDate Contents

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1. 腰仙部神経叢症候群 lumbosacral plexus syndromes
2. 糖尿病性筋萎縮症および特発性腰仙骨骨神経叢神経障害 diabetic amyotrophy and idiopathic lumbosacral radiculoplexus neuropathy
3. 心電図チュートリアル：心室拡大および心室肥大 ecg tutorial chamber enlargement and hypertrophy
4. 急性腰仙部神経根障害：病態生理、臨床的特徴、および診断 acute lumbosacral radiculopathy pathophysiology clinical features and diagnosis
5. 正常洞調律および洞性不整脈 normal sinus rhythm and sinus arrhythmia

English Journal

Lumbar foraminal stenosis, the hidden stenosis including at L5/S1.

Orita S1, Inage K2, Eguchi Y3, Kubota G4, Aoki Y4, Nakamura J2, Matsuura Y2, Furuya T2, Koda M2, Ohtori S2.
European journal of orthopaedic surgery & traumatology : orthopedie traumatologie.Eur J Orthop Surg Traumatol.2016 Jun 18. [Epub ahead of print]
In patients with lower back and leg pain, lumbar foraminal stenosis (LFS) is one of the most important pathologies, especially for predominant radicular symptoms. LFS pathology can develop as a result of progressing spinal degeneration and is characterized by exacerbation with foraminal narrowing ca
PMID 27318669

Neurovascular Compression Caused by Popliteus Muscle Enlargement Without Discrete Trauma.

Cho KJ1, Kang S1, Ko S1, Baek J1, Kim Y2, Park NK1.
Annals of rehabilitation medicine.Ann Rehabil Med.2016 Jun;40(3):545-50. doi: 10.5535/arm.2016.40.3.545. Epub 2016 Jun 29.
Popliteal entrapment syndrome caused by isolated popliteus muscle enlargement is very rare, although its occurrence has been reported after discrete trauma. However, popliteal artery stenosis with combined peroneal and proximal tibial neuropathy caused by popliteus muscle enlargement without precedi
PMID 27446794

Magnetic resonance diffusion tensor imaging of cervical spinal cord and lumbosacral enlargement in patients with cervical spondylotic myelopathy.

Chen X1, Kong C1, Feng S2, Guan H3, Yu Z1, Cui L1, Wang Y1.
Journal of magnetic resonance imaging : JMRI.J Magn Reson Imaging.2016 Jun;43(6):1484-91. doi: 10.1002/jmri.25109. Epub 2015 Dec 1.
PURPOSE: To identify the correlations of diffusion tensor imaging (DTI) indices between the cervical spinal cord and lumbosacral enlargement in healthy volunteers and patients with cervical spondylotic myelopathy (CSM).MATERIALS AND METHODS: DTI was performed at the cervical spinal cord and lumbosac
PMID 26620105

Japanese Journal

手の痺れで発症し，神経線維腫が疑われた慢性炎症性脱髄性ニューロパチーの１例

The Japanese Journal of Rehabilitation Medicine 46(7), 446-452, 2009
NAID 130000145908

Effects of Systemic Deep Hypothermia and Subarachnoid Block on the Longitudinlly Conducting Evoked Spinal Cord Potentials in Man

The Kurume Medical Journal 53(1/2), 13-22, 2006
NAID 130000097825

第5腰神経障害に対する前方進入椎間孔外部拡大術の経験

中部日本整形外科災害外科学会雑誌 47(2), 355-356, 2004-03-01
NAID 10013165009

「腰仙膨大」

Lumbar enlargement
	Diagrams of the medulla spinalis. (Cervical enlargement labeled at center right.)
Details
Latin	intumescentia lumbosacralis
Identifiers
Gray's	p.752
Dorlands; /Elsevier	i_11/12457957
TA	A14.1.02.003
FMA	74895
	Anatomical terminology